ArticleRoyal Society open science2024
Prediction of individual differences in non-iridescent structural plumage colour from nanostructural periodicity and regularity.
Article in Royal Society open science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Replicated urban mosaics reveal trait- and species-specific shifts in carotenoid and structural plumage colouration of two passerines.Scientific reports · 2026Article
- Experimental data suggest between population reversal in the condition dependence of two sexually selected traits.Scientific reports · 2025Article
- Prediction of individual differences in non-iridescent structural plumage colour from nanostructural periodicity and regularity.Royal Society open science · 2024Article
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Authors and funding
9 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Non-iridescent structural plumage reflectance is a sexually selected indicator of individual quality in several bird species. However, the structural basis of individual differences remains unclear. In particular, the dominant periodicity of the quasi-ordered feather barb nanostructure is of key importance in colour generation, but no study has successfully traced back reflectance parameters, and particularly hue, to nanostructural periodicity, although this would be key to deciphering the information content of individual variation. We used matrix small-angle X-ray scattering measurements of intact, stacked feather samples from the blue tit crown to estimate the sex-dependence and individual variation of nanostructure and its effects on light reflectance. Measures of nanostructural periodicity successfully predicted brightness, ultraviolet chroma and also hue, with statistically similar effects in the two sexes. However, we also observed a lack of overall effect of the nanostructural inhomogeneity estimate on reflectance chromaticity, sex-dependent accuracy in hue prediction and strong sex-dependence in position estimation error. We suggest that reflectance attributes are modified by other feather structures in a sex-specific manner, and that within-individual variation in nanostructural parameters exists within or among feathers and this confounds the interpretation of structure-reflectance relationships at the plumage area level.
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